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Retrieval-Augmented Generation (RAG) offers a cost-effective approach to injecting real-time knowledge into large language models (LLMs). Nevertheless, constructing and validating high-quality knowledge repositories require considerable…

Computation and Language · Computer Science 2024-05-28 Xun Liang , Simin Niu , Zhiyu li , Sensen Zhang , Shichao Song , Hanyu Wang , Jiawei Yang , Feiyu Xiong , Bo Tang , Chenyang Xi

While Retrieval-Augmented Generation (RAG) systems enhance Large Language Models (LLMs) by incorporating external knowledge, they still face persistent challenges in retrieval inefficiency and the inability of LLMs to filter out irrelevant…

Computation and Language · Computer Science 2025-02-13 Ruobing Yao , Yifei Zhang , Shuang Song , Yuhua Liu , Neng Gao , Chenyang Tu

Recent advances in Large Language Models (LLMs) have significantly improved complex reasoning capabilities. Retrieval-Augmented Generation (RAG) has further extended these capabilities by grounding generation in dynamically retrieved…

Computation and Language · Computer Science 2026-02-23 Jash Rajesh Parekh , Pengcheng Jiang , Jiawei Han

Despite the strong abilities, large language models (LLMs) still suffer from hallucinations and reliance on outdated knowledge, raising concerns in knowledge-intensive tasks. Graph-based retrieval-augmented generation (GRAG) enriches LLMs…

Computation and Language · Computer Science 2026-01-14 Derong Xu , Pengyue Jia , Xiaopeng Li , Yingyi Zhang , Maolin Wang , Qidong Liu , Xiangyu Zhao , Yichao Wang , Huifeng Guo , Ruiming Tang , Enhong Chen , Tong Xu

Retrieval-Augmented Generation (RAG) systems fail when documents evolve through versioning-a ubiquitous characteristic of technical documentation. Existing approaches achieve only 58-64% accuracy on version-sensitive questions, retrieving…

Information Retrieval · Computer Science 2025-10-10 Daniel Huwiler , Kurt Stockinger , Jonathan Fürst

Retrieval-augmented generation (RAG) has emerged as a pivotal method for expanding the knowledge of large language models. To handle complex queries more effectively, researchers developed Adaptive-RAG (A-RAG) to enhance the generated…

Artificial Intelligence · Computer Science 2025-05-27 Jie Ou , Jinyu Guo , Shuaihong Jiang , Zhaokun Wang , Libo Qin , Shunyu Yao , Wenhong Tian

Graph Retrieval-Augmented Generation (Graph-RAG) enhances multihop question answering by organizing corpora into knowledge graphs and routing evidence through relational structure. However, practical deployments face two persistent…

Information Retrieval · Computer Science 2026-01-30 Jiate Liu , Zebin Chen , Shaobo Qiao , Mingchen Ju , Danting Zhang , Bocheng Han , Shuyue Yu , Xin Shu , Jingling Wu , Dong Wen , Xin Cao , Guanfeng Liu , Zhengyi Yang

We present \textbf{SymbioticRAG}, a novel framework that fundamentally reimagines Retrieval-Augmented Generation~(RAG) systems by establishing a bidirectional learning relationship between humans and machines. Our approach addresses two…

Information Retrieval · Computer Science 2025-05-06 Qiang Sun , Tingting Bi , Sirui Li , Eun-Jung Holden , Paul Duuring , Kai Niu , Wei Liu

Retrieval-Augmented Generation (RAG) enhances language models by incorporating external knowledge at inference time. However, graph-based RAG systems often suffer from structural overhead and imprecise retrieval: they require costly…

Information Retrieval · Computer Science 2025-06-24 Jiale Zhang , Jiaxiang Chen , Zhucong Li , Jie Ding , Kui Zhao , Zenglin Xu , Xin Pang , Yinghui Xu

Retrieval-Augmented Generation (RAG) has emerged as a widely adopted approach for knowledge injection during large language model (LLM) inference in recent years. However, due to their limited ability to exploit fine-grained inter-document…

Computation and Language · Computer Science 2025-09-09 Weitao Li , Kaiming Liu , Xiangyu Zhang , Xuanyu Lei , Weizhi Ma , Yang Liu

Large Language Models (LLMs) have greatly contributed to the development of adaptive intelligent agents and are positioned as an important way to achieve Artificial General Intelligence (AGI). However, LLMs are prone to produce factually…

Computation and Language · Computer Science 2024-08-29 Weijian Xie , Xuefeng Liang , Yuhui Liu , Kaihua Ni , Hong Cheng , Zetian Hu

Chunking information is a key step in Retrieval Augmented Generation (RAG). Current research primarily centers on paragraph-level chunking. This approach treats all texts as equal and neglects the information contained in the structure of…

Computation and Language · Computer Science 2024-03-19 Antonio Jimeno Yepes , Yao You , Jan Milczek , Sebastian Laverde , Renyu Li

Large Language Models (LLMs) struggle with knowledge-intensive tasks due to hallucinations and fragmented reasoning over dispersed information. While Retrieval-Augmented Generation (RAG) grounds generation in external sources, existing…

Computation and Language · Computer Science 2026-04-14 Cheng-Yen Li , Xuanjun Chen , Claire Lin , Wei-Yu Chen , Wenhua Nie , Hung-Yi Lee , Jyh-Shing Roger Jang

Retrieval-augmented generation (RAG) has shown promising results in enhancing Q&A by incorporating information from the web and other external sources. However, the supporting documents retrieved from the heterogeneous web often originate…

Computation and Language · Computer Science 2026-03-26 Kaize Shi , Xueyao Sun , Qika Lin , Firoj Alam , Qing Li , Xiaohui Tao , Guandong Xu

Retrieval-augmented generation (RAG) combines document retrieval with large language models to produce responses grounded in external evidence. While several R packages support core components of RAG workflows, integrated evaluation of RAG…

Computation · Statistics 2026-04-28 Muhammad Aimal Rehman , Zhili Lu , Chi-Kuang Yeh

Research question answering requires accurate retrieval and contextual understanding of scientific literature. However, current Retrieval-Augmented Generation (RAG) methods often struggle to balance complex document relationships with…

Information Retrieval · Computer Science 2025-01-28 Yuntong Hu , Zhihan Lei , Zhongjie Dai , Allen Zhang , Abhinav Angirekula , Zheng Zhang , Liang Zhao

Retrieval-Augmented Generation (RAG) has emerged as a powerful approach for grounding Large Language Model (LLM)-based chatbot responses on external knowledge. However, existing RAG studies typically assume well-structured textual sources…

Computation and Language · Computer Science 2026-02-13 Sungmoon Kim , Hyuna Jeon , Dahye Kim , Mingyu Kim , Dong-Kyu Chae , Jiwoong Kim

Retrieval-Augmented Generation (RAG) systems often face limitations in specialized domains such as fintech, where domain-specific ontologies, dense terminology, and acronyms complicate effective retrieval and synthesis. This paper…

Artificial Intelligence · Computer Science 2025-10-30 Thomas Cook , Richard Osuagwu , Liman Tsatiashvili , Vrynsia Vrynsia , Koustav Ghosal , Maraim Masoud , Riccardo Mattivi

Retrieval-Augmented Generation (RAG) has shown substantial promise in improving factual accuracy by grounding model responses with external knowledge relevant to queries. However, most existing approaches are limited to a text-only corpus,…

Computation and Language · Computer Science 2026-05-19 Woongyeong Yeo , Kangsan Kim , Soyeong Jeong , Jinheon Baek , Sung Ju Hwang

Standard Retrieval-Augmented Generation (RAG) relies on chunk-based retrieval, whereas GraphRAG advances this approach by graph-based knowledge representation. However, existing graph-based RAG approaches are constrained by binary…

Artificial Intelligence · Computer Science 2025-10-22 Haoran Luo , Haihong E , Guanting Chen , Yandan Zheng , Xiaobao Wu , Yikai Guo , Qika Lin , Yu Feng , Zemin Kuang , Meina Song , Yifan Zhu , Luu Anh Tuan